A Study Investigate the Safety, Tolerability, Pharmacokinetic, and Pharmacodynamic Response of SLN124 in Adults With Alpha/Beta-thalassaemia and Very Low- and Low-risk Myelodysplastic Syndrome
Non-transfusion-dependent Thalassemia, Low Risk Myelodysplastic Syndrome, Very-Low Risk Myelodysplastic Syndrome
About this trial
This is an interventional treatment trial for Non-transfusion-dependent Thalassemia
Eligibility Criteria
Inclusion Criteria:
- Adult with alpha- or beta-thalassaemia or compound heterozygous haemoglobin E/beta-thalassaemia or adult with very low- or low-risk MDS according to the 2016 revision to the World Health Organisation classification.
- All subjects must agree to adhere to appropriate contraception requirements.
- Subjects must provide written informed consent and be able to comply with all study requirements.
- Body mass index ≥18 kg/m2 and ≤35 kg/m2 at screening.
- At least one of: a) Mean ferritin >250 μg/L based on a minimum of 2 measurements ≥1 week apart within 20 days before the planned dosing day, in the absence of active significant infection; b) Mean TSAT >40% measured on a minimum of 2 occasions ≥1 week apart within 20 days before the planned dosing day; c) Liver iron >3 mg Fe/g dry weight, measured according to local procedures.
- Mean baseline haemoglobin concentration ≥5 g/dL and ≤11 g/dL, based on a minimum of 2 measurements ≥1 week apart, within 20 days before the planned dosing day.
Exclusion criteria
- Adult with haemoglobin S/alpha-thalassaemia or haemoglobin S/beta-thalassaemia or adult with secondary MDS, i.e., MDS that is known to have arisen because of chemical injury or treatment with chemotherapy and/or radiation for another disease.
- History of multiple drug allergies or history of allergic reaction to an oligonucleotide or GalNAc, or intolerance to s.c. injections.
- Known infection with HIV, or active infectious hepatitis A, B, or C virus.
- Any conditions which, in the opinion of the Investigator, would make the subject unsuitable for enrolment in the study or could interfere with the subject's participation in, or completion of the study.
- History or clinical evidence of alcohol or illegal drug misuse within 2 years before screening.
- Currently using ESA, or plan to use ESA at any point during the study.
- Require daily treatment with 1 or more non-steroidal anti-inflammatory drugs during the study period. Paracetamol will be permitted for use as an antipyretic and/or analgesic.
- Treatment, or change in treatment with prohibited medications as specified in the protocol
- Treatment with ICT where the subject has not been on a stable dose for at least 8 weeks before screening or it is planned to initiate ICT therapy during the study.
- Clinically significant cardiac disease
- Clinically significant pulmonary disease
For subjects with thalassaemia:
- Treatment, or change in treatment with prohibited medications as specified in the protocol
- currently and anticipated to receiving more than 5 units of RBCs during the 24 weeks to 6 weeks period before first dose of study drug.
For subjects with very low / low-risk MDS:
- Previous allogeneic or autologous stem cell transplantation.
- Currently or planned to receive treatment with a corticosteroid for MDS within 8 weeks before screening.
- Currently or planned to receive treatment with haematopoietic growth factors (e.g., eltrombopag, romiplostim) within 8 weeks before screening.
Sites / Locations
- Universitaetsklinikum Duesseldorf
- Universitat Leipzig
- Rambam Health Care Campus
- Sheba Medical Center
- Tel Aviv Sourasky Medical Center
- Bar-Ilan University - Faculty of Medicine
- AUSL della Romagna - Ospedale di Ravenna
- Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia
- Jordan University Hospital
- King Hussein Cancer Center
- Irbid Speciality Hospital
- Sarawak General Hospital
- Hospital Ampang
- King Chulalongkorn Memorial Hospital
- Mahidol University - Faculty of Medicine - Ramathibodi Hospital
- Mahidol University - Siriraj Hospital
- Faculty of Medicine, Chiang Mai University
- University Hospital of Wales
- The Leeds Teaching Hospitals NHS Trust - Saint James's University Hospital
- Hammersmith Medicines Research Ltd (HMR)
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Arm 5
Arm 6
Arm 7
Arm 8
Arm 9
Arm 10
Arm 11
Arm 12
Arm 13
Arm 14
Arm 15
Arm 16
Arm 17
Arm 18
Experimental
Experimental
Experimental
Placebo Comparator
Experimental
Experimental
Experimental
Experimental
Experimental
Experimental
Experimental
Experimental
Experimental
Experimental
Experimental
Placebo Comparator
Placebo Comparator
Placebo Comparator
1.0mg/kg - Thalassaemia
3.0mg/kg - Thalassaemia
6.0mg/kg - Thalassaemia
Placebo - Thalassaemia
Xmg/kg - Thalassaemia
1.0mg/kg - Myelodysplastic Syndrome
3.0mg/kg - Myelodysplastic Syndrome
10.0mg/kg - Myelodysplastic Syndrome
Xmg/kg - Myelodysplastic Syndrome
3.0mg/kg - Thalassaemia multi dose
10.0mg/kg - Thalassaemia multi dose
Xmg/kg - Thalassaemia multi dose
3.0mg/kg - Myelodysplastic Syndrome multi dose
10.0mg/kg - Myelodysplastic Syndrome multi dose
Xmg/kg - Myelodysplastic Syndrome multi dose
Placebo - Thalassaemia multi dose
Placebo - Myelodysplastic Syndrome
Placebo - Myelodysplastic Syndrome multi dose